Can-making machine



(No Model.) 8 Sheets-Sheet 1.

' R. D. HUMEI CAN MAKI NG MACHINE.

Patented P.eb.'2,-1897.'

'(No Model.) B 'D HUME 8 Sheets-Sheet 2.

CAN MAKING MACHINE.

PatentedFjeb. z; 1897.

(No Model.) B D HUME 8 Sheets -Sheet 3. CAN MAKING MACHINE.

Patented Feb. 2, 1897.

(No Model.) s Sheets+Shet 5.

I R; D. HUME. BAN-MAKING MAGHINB.

- Patented Feb. 2, 1897.

Sheets8heet 6.

(No Model.)

R. D. HUME. 0,111 MAKING 111101111111.

1%. 576,121. Patented Feb; 2, 1897.

m: NORR s PTEns c0, PNOTOLITKO. WASNINGTON, o. c.

(No M01161.)

' s sheetssheet s. I R. D. HUME.

CAN MAKING MACHINE. 4 1 1- Patented Feb. 2, 1897. M 55 r v 5, and (i areplan views of the same.

8 is a plan view of the same.

latch-block.

UNrTJEn STATES PATENT OFFicE.

ROBERT HUME, OF GOLD BEACH, OREGON.

CAN-MAKING MACHINE.

SPECIFICATION forming part of Letters Patent N 0. 576,121, datedFebruary 2, 1897. Application filedDecemher 10, 1894. Serial No.531,386- (No model.)

To all whom it may concern:

Be it known that I, ROBERT D. HUME, a citizen of the United States,residing at Gold Beach, in the county of Curry and State of Oregon, haveinvented certain new and useful Improvements in Can-Making Machines; andI do hereby declare that the following is a full, clear, and exactdescription thereof.

My invention relates to the man ufactnre of cans from sheet metal, andmore particularly to a method of and machinery for automaticallyproducing cans of other than cylindrical shape, rapidly andcl1eaply,from blanks of sheet metal.

In Letters Patent issued to me April 11, 1893, No. 495,426; October 17,1893, No. 506,878; November 6, 1894, No. 528,673, and November 13, 1894,No. 529,269, and in an application for Letters Patent filed by meDecember 1, 1894, Serial-No. 530,590, Ihave described and shownmachinery for making cans in-which flat blanks, propelled successivelyalonga forming-horn, are formed into cylindrical can-bodies, which intheir progress along the horn are subjected to the successive operationsof side-scamin g, soldering, and headingin single automatic machines.

The object of my present invention is to form can-bodies of square,oblong, or other polygonal cross-section from flat blanks and to placeheads or covers upon such can-bodies by a connectedcontinuously-operated mechanism.

In the following description I have set forth in detail the method andapparatus employed by me, and in connection with such description Irefer to the accompanying drawings, in which Figures 1, 2, and 3 areside elevations on different sheets which represent, when takentogether, the machine as a whole. Figs. 4, Fig. 7 is a side elevation ofpart of the carrier. Fig.

Fig. 9 is a section through the carrier-bar on line x as, Fig. 7. Fig.10 is a section through. the carrierbar and latch on line y y, Fig. 7.Fig. 11 is a longitudinal section through the movable Fig. 12 is asection through the end of the movable latch-block on line as, Fig. 11.Fig. 13 is a plan view of alink-rod between the movable latch-blocks.Fig. 14

same on line 8 s, Fig. 23.

shows the connection of the gas-pipe ramrod with the sliding side bar.Fig. 15 is asection through the horn on line 0 0, Fig. 1. Fig. 1G is asection through the horn on line a r, Fig. 2. Fig. 17 is a horizontalsection through the'horn, showing the shape of the ramrod, the insidesoldering-iron, and wiper. Fig. 18 is a section through the horn on line41 c, Fig. 17, showing the gas-pipe ramrods with gasjets to warm thecan-bodies. Fig. 19 is a crosssection through the horn on line to 20,Fig. 17 showing the inside soldering-iron. Fig. 20 is a cross-sectionthrough the horn on linen a, Fig. 17, showing the inside wiper. Fig. 21is a longitudinal section through the forward end of the machine,showing the automatic feed for heads and bottoms, also the stop-ring andsqueezer-ring holder, the ram containing the crimper arrangement, andthe cam operating the ram and crimper. This section shows the can-bod yand the head and bottom in place and the cri'm per-jaws open. Fig. 22 isthe same longitudinal section, showing the bottom slipped over thecan-body and the crimper closed. Fig. 23 is a side elevation of thepreventer or stop-ring and squeezing-ring holder, also of the rollerupholding the end of horn. Fig. 24 is a rear view of the same With partof the covering-plate and the roller removed to show the preventer aswell as the squeezer-ring. Fig. 25 is a horizontal section through theFig. 26 is a rear view of the shaping-ring. Fig. 27 is a section throughthe same on line t t, Fig. 26, showing also the carrier attached to theshaping-ring and its connection with the sliding side bar. Fig. 28 is aside elevation of the rear end of the ram containing the crimpingarrangement. Fig. 29 is a rear view of said ram. Fig. 30 is alongitudinal section through the same,showing the pad for placing thecan-bottom in position and the devices for operating thecrimping-sections. Fig. 31 is a rear view of the same with thecovering-plate removed. Fig. 32 is a section through the crimping-jaw online p 19, Figs. 29 and 31. Fig. 33 is a plan view of the tapering partof the born with one of the sheaths removed, showing the sectionalcarriers in the grooves of the horn. Fig. 34 is an elevation of theoutside soldering-tank.

ICO

The main frame A of my machine extends throughout its length, as shownin Figs. 1, 2, and 3, taken together. The driving-shaft B is journaledat the forward end of the frame, Fig. 3, and is provided withbelt-pulleys and fly wheel, as shown. A crank-shaft O is geared downfrom the driving-shaft by the spur-gears 1 and The crank 3 gives motionto the reciprocating side bar 0 through the connecting-rod 4.. The sidebar is supported by guides in the main frame and extends throughout itslength, and from the reciprocation of such barare derived all theoperative motions required in the making of cans.

At the rear end of the machine is the feeding device for the blanks fromwhich the canbodies are formed. The details of this mechanism are fullyshown in Letters Patent granted to me November 6, 1894, No. 528,673, andform no part of the present invention. It consists of pneumatic cupsoperated vertically from the side bar by means of a roller 5 and adepression in the side bar. The blanks are arranged in a pile, and thecups adhere to each blank successively and lift it to a position whereit can be seized by the hooked ends 6 of the reciprocating carriers CThese carriers are dovetailed in grooves in the frame and are connectedby a cross-head 7, Figs. 4 and 8, secured directly to the side bar. Theforward stroke of the carriers pulls the flat blank forward beneath theplate 8 and above the forming-horn D. Beneath this plate, and shown indotted lines, Fig. 4, are the horizontal rollers which bend the edges ofthe blank into hooks, which are afterward interlocked to form the sideseam. The carriers C are recessed, as shown in Figs. 7, 8, and 10, andin each recess is pivoted a latch 9, which, by a pressure-spring 10, iscaused to project so as to bear upon the rear edges of the blanks andmove them forward. On the back stroke of the carriers the latches arepressed inwardly by passing under the next blank following.

As shown in my previous patents and in the application above referredto, the blanks formed into cylinders between the horn D and sheath D andwith their hooked edges loosely engaged are fed intermittently andsuccessively along the horn to the side-seaming mechanism, consisting ofdies and a hammer, and which as a whole is represented at E, 1 and 4.The details of the construction of this mechanism form 110 part of thepresent invention, but are fully set forth in the application for patentbefore referred to. The drawings therefore show only the externalappearance 'of the side-seaming device and the connections by which itis operated from the side bar.

As the grooves for guiding the carriers through the tapering part of thehorn are spirally formed in the horn, I have devised a peculiarconstruction for the carriers at this point, by means of which they canreciprocate freely in such grooves in spite of the spiral configurationof the latter. carrier-rod would necessarily have to twist to conform tothese grooves. Hence I make this part of the carrier-rods in sections,swiveled together, so that when moving on the spiral line the sectionscan move axially independently of one another, producing the same effectas if a single rod were compelled to twist in each groove. Thisconstruction keeps the latches in proper position and reduces thefriction against the side of the grooves. The figures of the drawingsfrom '7 to 13 and Fig. 83 show this'arrangement. Each pivoted latch 9 isheld in a recess in a tapered or dovetailed block 11, the latter beingguided by the groove, which is of corresponding cross-section. The endsof the blocks are slotted, 12, to receive short rods 13, having heads14:, which form swiveled connections between the respective blocks, thewhole comprising a flexibly-jointed carrier-rod, which, with itslatches, is self-adj usting in the groove in which it travels. These'swiveled carriers terminate at the ends of the grooves in which theywork, and the subsequent movement of the can-bodies is accomplished byother carriers, hereinafter to be described.

Beyond the side-seaming device the crosssection of the horn is changedfrom circular to polygonal. In the drawings I have shown thecrosssection as oblong with rounded edges, but any angular cross-sectioncan be given the horn, according to the shape of can to be made.

The circular can-body enters upon the angular part of the horn, whichfor convenience I term the square part, at the left-hand end of Figs. 2and 4:, and its cross-section commences to change at that point. Itfirst assumes the form of a circle partly flattened on four sides. Atthis point the body is seized by carriers C Figs. 2 and 5. Thesecarriers are secured to the shapin g-rin g F, which surrounds the horn,such ring being bolted to the side bar and moving with it. Thecross-section of the horn at this point-that is, beneath the line oftravel of the shapingring-is shown in Fig. 16. Its sides, top, andbottom are slightly curved inward, so that the ring, similarly shaped,will slightly curve the sides of the can-body inward. The ring is shownin detail in Figs. 26 and 27 with the carriers C attached to it. It hasan internal bevel 15, forming an ironing or shaping edge, which on itsbackward stroke presses all sides of the can-body against the horn andproduces the slight inward curvature above referred to. IV hen releasedfrom the shapingring, the sides of the can-bodies are allowed to springout, so that they are flat on all sides. It the shaping-surface of thering were square instead of curved inwardly, the elasticity of thecan-body would tend to cause the sides to bulge slightly outward insteadof being flat.

At the ends of the carriers 0 are latches 16, pivoted in recesses insuch carriers and ex- A rigid ICC 55 t until it strikes a nut 23, fixedon the rod G,

tact with the fluxing-rollers 24E, (dotted lines,

tending transversely across them, their length being nearly or quiteequal to the width of the horn, so that they can bear upon the sideedges of the can-bodies for the greater part of the length of suchedges. In the horn and just in front of the top and bottom of ring F arepivoted similar latches 17, which act as stops to prevent the shapedcan-bodies from driving backward until they are seized by the carriers0*, by which they are impelled along the horn while being subjected tothe various operations required to complete them. The shaping-ringitself acts as a carrier to bring each can-body to the carriers 0 itsinwardlycurved edges 15 slipping over the rear straight edges of thecan-body, so that its forward stroke carries the can-body just shapedalong the born to the point where the carriers 0 .come into operation.

The operations following the shaping of the can-bodies will depend uponthe kind of cans to be made and the purposes for which they are to beused. If the machine is to make cans for holding pepper, spices, orother dry products, the can-bodies, after being sideseamed and shaped,are ready for the operation of heading, since no soldering is required.\Vhen cans are to be used for containing liquid or partly-liquidcontents, such as oil, syrups, &c., it is necessary to solder the sideseam, and I have hence shown in the drawings soldering devices, or somuch of them as will give a clearunderstanding of their operation. Thesoldering devices are heated by gasburners. Themain gas-pipe G also actsas a sliding rod, which, as in my application referred to, is connectedto the heading-ram or extension of the horn. It is provided with aflexible section or hose 18, so that it can reciprocate freely, andextends through the horn. At one portion of its length, however, it iscoupled to two branch pipes 19 19, Fig. 17, which pass through the hornand are provided with burner-openings to heat the can andsoldering-irons from both sides. The gas-pipe at its rear end isconnected to the side bar by a cross-head G through which the rod canslide freely a limited distance. A spring 21 is interposed between thecrosshead anda nut 22 at the end of the gas-pipe, which forms a yieldingstop for preventing jar. In Fig. 1, where the side bar is shown at theend of its backward stroke, the spring is compressed. At the forwardstroke of the side bar the cross-head Gr slides on the rod and pushesthe rod forward. Thus if the side bar has, for instance, a full strokeof eight inches, while it is only desired to move the gas-pipe and theheading extension or ram the length of a can-body, (say four inches,)the nut 23 can be adjusted relatively to the crosshead G so as to causethe side bar to act on the gas-pipe during only a part of its stroke.

Before the can is soldered it passes in con- Fig. 2,) which are held inthe acid-tank I and which apply acid to the exterior of the side seam.As will be seen in Figs. 18, I9, and 20, the horn is open at top andbottom. The outside soldering-tank I is shown in Fig. 84 and ispreferably constructed like the one fully described in my applicationbefore referred to.

Fig. 18 shows in crosssection the arrangement of the interior gas pipeswith their burner-orifices arranged to project the flame down againstthe seam of each can.

The inside-seam-soldering device consists of stationary bars 25,.mountedin brackets 26, secured within the horn, which extend down to the slotin such horn and spread the solder which comes through the joint uponthe inner part of the seam.

A solder cutter and feeding device of the kind fully described in myapplication referred to automatically cuts lengths of solder from a wireof that material and feeds them to the heated tank. H, Fig. 2,represents such a device together with the connections for operating thesame from the side bar.

J represents the wipers for removing the excess of solder from theinside seam. They are mounted within the horn and are preferablycomposed of strips of asbestos secured together and extending down tothe open bottom of the horn and into contact with the side seams of thepassing cans. Suitable outside wipers are also used. 1 i

The can-body, side-seamed and soldered, is now ready to receive itsheads. The heading mechanism shown in the d1 awingsis especiallyconstructed and adapted to head a certain kind of square can forcontaining dry products, such as pepper, spices, &c., which are usedgradually and in small quantities at a time. Such cans must be providedwith two heads or, speaking more accurately, with a ti ghtly-securedbottom and a closely-fittin g but removable slip cover or top. In makingcans for holding liquid or partly-liquid contents the heading mechanismmust be so modified as to firmly and rigidly secure a head at each end,which is afterward soldered.

The ram or telescopic extension D of the horn is, as before stated,connected to the reciprocating gas-pipe rod G, so as to have a stroke ofabout the length of the can-body independently of the horn. It slides inguides in the sides of the horn and receives the canbodies successivelyfrom the latter. At each forward stroke of the rod G the ram carries acan-body into the heading-tube Diand past the beveled sliding blocks P,four in number, which are held in recesses in the tube and are forcedconstantly toward. the interior of the said tube by springs 27.

can-body is in place and the extension I) has been withdrawn theseblocks spring in behind the can and hold it in the position shown inFig. 21.

The can bottom and cover are fed simultaneously into the tube throughfeed pas: sages or chutes 28. The feed takes place As soon as the whilethe extension D is withdrawn and is controlled by the mechanism forputting the bottom upon the can-body. A sliding bolt or cut-off 29 hasshoulders 30, which simultaneou sly open and simultaneously close bothfeed-passages 28 above the heading-cylinder. Connected to this cut-offby a forked lever 31 is a sliding frame having stop-pins 32,

which close the feed-passages when the cutoff is open, and vice versa.Thus a large number of can-heads may be in the passages above the pins32, but such pins will allow them to drop only singly and successivelyupon the shoulders of the cut-off in each passage. Fig. 21 shows aslip-cover and a canbottom in position in line with a can-body and readyto be placed upon such body. The slip-cover is placed upon the body bythe extension D at its forward stroke following that which placed thecan-body in position, an operation that will be hereinafter described.

This specification follows the operation of the machine in the order ofits successive steps, and as, in point of time, the securing of thebottom upon one end of the can-body precedes the placing of theslip-cover upon the other end I shall first describe the devices whichaccomplish the former result.

Reference is made to Figs. 21 and 22, to Figs. 28 to 82, inclusive, andto Figs. 3 and 6, the latter for general views showing the connectionsfor operating the header from the driving-shaft.

Mounted upon the shaft 0 is a cam K.

L is a slide guided in the main frame of the machine and moved towardand away from the heading-tube by the action of the cam upon rollers and34:, respectively, journaled in the slide. In its motion toward and intothe heading-tube it opens the cut-off and feeds the can bottom and coverinto line with the can-body, places the bottom upon the can-body, andthen crimps it there. By its reverse motion it opens the end of thetube, so that the extension D in its forward stroke can drive thefinished can out of the tube after placing the cover in position.

To the slide L is secured a heading-ram, which consists of a ring M, aback or cover ing plate M, secured thereto, and an independently-movableplunger which fits loosely within the ring M and is normally forcedoutward by springs 85 in recesses 36 of the ring. These springs arestrong enough to allow the cam K to move the ring and plunger togethertoward the cylinder. hen this movement takes place, the back plate Mstrikes an arm 37, pivoted to the cut-off 29, and opens the cut-off, soas to let the bottom and cover drop, as before described. This arm 37 ispivoted to an S-shaped lever 38, one extremity of which is pivoted tothe cutoff, while the other rests upon the can in the heading-tube. Thelever 38 also acts as a safety-latch to prevent the feeding of canheadsexcepting when a can-body is in readiness to receive them.

A slot is formed in the top of the extension D, into which the latchdrops unless held up by a can-body. The dropping of the latch raises thearms 37 above the plate M, and hence the cut-off cannot be moved norcanheads supplied until an incoming can-body raises the latch. Thecut-off is closedby the action of the springs on bolts 32 through thelever 31.

Secured to the plunger M and projecting a little beyond its face is asquare pad M having a spring 39, which bears against and fits within-therecessed or paneled can-bottom and places and holds such bottom upon thecan-body, the latter, it will be remembered, being held firmly by thestops P. This pressure is imparted by the cam K, Fig. 22,whieh drivesthe plunger and pad inwardly. An independent movement of the plungeroperates the crimping-sections by which the bottom is firmly crimpedupon the can-body. These crimping-sections N are held between the backplate M and the ring M. Fig. 31 shows their shape in elevation clearly,and their cross-section is best shown in Fig. 30. Their innerperipheries, when brought together, form a continuous crimping edge 40,extending entirely around the flange of the can-bottom. Each sectioncrimps a quarter of the periphery of the flange, including one corner.The crimping edges are formed by a double bevel 41, Fig. 80, and the padM is also beveled at its edges, so as to fit snugly and hold thecan-head rigidly in place while the crimping is being done. This insuresthe accurate crimping of the flange in a line around its entire extent.

The crimping-sections are forced inwardly by pins 42, secured in the rimof the plunger and having inclined surfaces 43 attheir ends, Fig. 32. Arecess li is formed in each crimping-section and provided with anopposing incline 45. A projection K on the cam forces the plunger inwardindependently of the ring M and pad, so that the pins 42 act against theinclines 45 and drive the crimping-sections inward and toward each otherand against the flange of the can-bottom. The slide L is then withdrawnand the end of the heading-tube is 110w open. All this operation ofsecuring the ean-bottom has taken place during the backward movement ofthe extension D and while it is advancing to push the slip-cover uponthe can-body. At the forward stroke of the extension following up theretreating ram three results are accomplished. The slip-cover is placedon the can just before the slide L commences to retreat, the finishedcan is driven out of the headingtube, and another can-body is placedwithin the tube ready to be headed.

Referring again to Figs. 22, 24:, and25, the can-body and slip-cover arein place and in line when the extension commences its for ward stroke. Asectional compressing-ring 0, having rounded and inwardly-curved edges,(like the shaping-ring, F1 26,) 1s

IIO

p'ress'ed'constantly inward by springs 10, so that the curved edges bearagainst the canbody close to its rear or open end. The object of this isto temporarily compress the end of the can-body on all sides, reducingthe size a little, so that the slip-cover will readily pass into placeupon it. The extension strikes the slip-cover, pushes it over the end.of the can-body, and by the same movement drives the can, now complete,out of the heading-tube. The blocks P and sections 0 yield as theextension enters, and the compressed end of the can-body springs outagainst the slip-cover, which now fits closely.

I now have a finished can with tight bottom and removable cover, whichif intended for dry products is ready for use. If in tended .for liquidor partly-liquid contents, the side seam will have been soldered, asherein described, and it is only necessary to solder the head or heads.

It must be understood that although throughout the foregoing descriptionI have used the terms square, angular, and polygonal to define the'kindof can produced by my machine such terms are not literally correct,although customarily used in the art. The corners of the can-bodies areusually rounded for strength and to give a better appearance, and thus,strictly speaking, do not form angles. Hence the words .used apply tothe general shape of the cans and are not necessarily to be takenliterally, although of course cans of a literal angular cross-sectioncan be produced by modifying the shape of the forming devices.

IV hat I claim is- 1. In a can-makingmachine, the combination with aformer or horn of angular crosssection, of carriers for propellingcan-bodies successively along said horn, and a movable shaping-ringsurrounding the horn and of a cross-section corresponding to that of thehorn, substantially as described.

2. In a can-making machine, and in combination, a' blank-feedingmechanism, a tapering former or horn and a surrounding sheath forbending the blanks into a tubular form, mechanism for side-seaming thecan-body, a prolongation of the horn of angular cross-section, a movableshapin g-ring surrounding said angular part of the horn, and carriersfor mo ving the cans in succession upon the horn, substantially as setforth.

3. In a can-making machine and in combination, a stationary horn ofangular crosssection, a blank-feeding mechanism, reciproeating carriersfor moving said blanks along said horn successively and intermittently,a movable shapin g-rin g fitting upon and around the horn, and areciprocating side bar connected to said shaping-ring, substantially asdescribed.

eled together, substantially as and for the purposes set forth.

6. In a can-making machine,.the combination with a stationary andtapering horn or former, having spiral grooves, of recessedcarrier-blocks, spring-latches in said recesses, and rods or linksswiveled to said blocks, whereby said blocks and latches areselfadjusting in said grooves, substantially as and for the purposes setforth.

7. In a can-making machine, the combination with a former or horn havingits top, bottom and sides formed on inwardly-curved lines incross-section, of a movable shapingring having an inner edge ofcorresponding cross-sectional curvature, substantially as and for thepurposes set forth.

8. In a can-making machine, the combination with a former or horn havingits top, bottom, and sides, formed on inwardly-curved lines incross-section, of a shaping-ring surrounding said horn and having aninner edge of corresponding curvature, and a reciprocating side barconnected to said shapingring, substantially as described.

9. In a can-making machine, a former or horn having a flat rear uppersurface, merging first into a tapered portion, thence into cylindricalcrossseotion, and thence into angular cross-section, in combination witha sheath inclosing the tapered portion, a separate movable shaping-ringinclosin g and conforming to the angular portion, and carriers forimpelling flat blanks and can-bodies along such horn or former,substantially as described.

10. In a can-making machine, a hollow horn or former, stationarysoldering-irons Within said horn, a gas-pipe extending through the horn,and branching into two pipes adjacent to said soldering-irons, and meansfor reciprocatin g said gas-pipe and branches, substan-' tially asdescribed.

11. In combination with the former or horn having at one end a slidingextension, a reciprocating side bar, a gas-pipe rod connected loosely tosaid side bar, and an adjustable Stop on said gas-pipe for regulatingthe length of the stroke derived from said side bar, substantially asdescribed.

12. I11 combination with the former orhorn, a sliding gas-pipe, areciprocating side bar connected by a cross-head to said gas-pipe, aspring on the gas-pipe adjacent to said crosshead, and a stop on thegas-pipe, whereby the gas-pipe derives a reciprocating stroke relativelyshorter than that of the side bar, substantially as described. 7

13. A mechanism for heading cans comprising an open-ended heading-tubeadapted to receive and hold a can-body and can-heads in line, incombination with reciprocating heading-rams and connections foroperating such rams successively, whereby the can heads are placedsuccessively upon the ends of the can-bod y, substantially as set forth.

14. In combination with a heading-tube, having means for holding acan-body and two can heads or covers in line, twoheading-rams, adaptedto act independently and successively upon the respective heads orcovers, substantially as described.

15. In a can-making machine, and in combination, a heading chamber ortube; a reciprocating plunger for placing can-bodies within such tubeand for heading one end of such can-bodies; can-head-feeding passagesinto said headingchamber for placing canheads in positions inline withsaid can-bodies; a heading-ram for heading the other end of saidcan-bodies; a driving-shaft, and independent connections from saiddriving-shaft to the plunger and to the heading-ram, whereby they aresuccessively operated to head both ends of the can and to discharge theheaded can, substantially as described.

16. In a can-making machine and in combination, a heading chamber ortube; a reciprocating plunger or ram for placing can- 'bodies withinsuch tube and for heading one end of such can-bodies; can-head-feedin gpas sages into said heading-chamber; a headingram for heading the otherend of said canbodies; a driving-shaft; a connecting-rod for operatingsaid plunger, and a cam for operating said ram, all substantially asdescribed.

17. In a can-making machine, a can-body former having a telescopicextension, in combination with a heading-tube, can-head-feedingmechanism, a heading-ram, and driving means for causing the followingconsecutive operations: the introduction of a can-body into theheading-tube by the forward stroke of the telescopic extension; thewithdrawal of said extension; the feeding of two canheads into line withthe can-body the securing of one can-head upon the can-body by theadvancement of the heading-ram; the placing of the other head upon thecan by the next forward stroke of. the telescopic extension, and thedischarge of the headed can from the tube by the same stroke of saidextension, substantially as set forth.

18. In a can-makin g machine, the combination with the heading-tube,having can-head feeding passages communicating therewith, of aheading-ram, a sliding cut-off, an arm for opening said cut-off,normally in the path of said ram, and a safety-latch connected to saidarm, adapted when no can-body is in the heading-tube to fall and therebyremove said arm from the path of the ram, substantially as and for thepurposes set forth.

19. In a machine for making cans of angular cross section, thecombination with a heading-tube and with can-body and can-head supplyingdevices, of a heading-ram having crimping-sections and means for forcingsuch sections together so as to surround and bear upon the rim of thecan-head, substantially as set forth.

20. In a can-making machine the combina tion with the heading-tube, of atwo-part heading-ram, crimping-sections, a cam for moving said two-partram as one for placing a can-head upon a can-body in the headingtube,and a cam for moving one part of said ram independently for operatingthe crimping-sections, substantially as set forth.

21. In a can-making machine, a headingtube, can-head-crimping sections,a reciprocating heading-ram, having an independently-movable plunger,beveled pins in said plunger, and beveled recesses in saidcrimping-sections, all constructed and arranged to operate substantiallyas described and shown.

In testimony whereof I have al'fixed my signature, in presence of twowitnesses, this 26th day of November, 1894.

- ROBERT D. HUME.

\Vitnesses:

S. W. SEELY, JAMES L. Kine.

